As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 8501 - CREW REPORTED SMOKE IN CABIN AND COCKPIT WHEN POWER LEVERS WERE PULLED BACK BELOW 35 PERCENT TORQUE IN BOTH AUTO AND MANUAL LOW BLEEDS AT HIGH ALTITUDES. TEARDOWN REPORTS SHOWED A CRACKED OIL SUPPLY LEAD IN THE GAS GENERATOR CASE CAUSED OIL CONTAMINATION IN THE BLEED SYSTEM. (M)